Thanks. So systemd-update-utmp.service started in no time, this is a red herring. The problem is this:
Jun 30 09:07:31 M2 systemd[1]: Job dev-disk-by\x2duuid-bb8b6759\x2d8fdb\x2d4e4b\x2d879b\x2d7701cb217d2a.device/start timed out. Jun 30 09:07:31 M2 systemd[1]: Timed out waiting for device dev-disk-by\x2duuid-bb8b6759\x2d8fdb\x2d4e4b\x2d879b\x2d7701cb217d2a.device. Jun 30 09:07:31 M2 systemd[1]: Dependency failed for /dev/disk/by-uuid/bb8b6759-8fdb-4e4b-879b-7701cb217d2a. Jun 30 09:07:31 M2 systemd[1]: Dependency failed for Swap. Jun 30 09:07:31 M2 systemd[1]: Job swap.target/start failed with result 'dependency'. Jun 30 09:07:31 M2 systemd[1]: Job dev-disk-by\x2duuid-bb8b6759\x2d8fdb\x2d4e4b\x2d879b\x2d7701cb217d2a.swap/start failed with result 'dependency'. Jun 30 09:07:31 M2 systemd[1]: Job dev-disk-by\x2duuid-bb8b6759\x2d8fdb\x2d4e4b\x2d879b\x2d7701cb217d2a.device/start failed with result 'timeout'. It seems your /etc/fstab contains a swap partition (by UUID) which isn't found any more. This might be a regression from the new kernel if some disk/file system related driver changed. Can you please copy&paste the output of sudo blkid ls -lR /dev/disk/by-uuid/ grep -v '^#' /etc/fstab Thanks! ** Summary changed: - UTMP Update makes booting 1:30min longer + boot hangs on missing swap partition -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1466314 Title: boot hangs on missing swap partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1466314/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs